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XI'AN ZZ TOP OIL TOOLS CO.,LTD
XI'AN ZZ TOP OIL TOOLS CO.,LTD

China Drill collar drill pipe manufacturer

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Gold Index: 78502

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Drill collar drill pipe 

Price: 300.0~500.0 USD 
Payment Terms: T/T,L/C 
Special Groups: Well drilling equipments (81)
Place of Origin: Shaanxi, China (Mainland) 
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Product Detail

Model No.: TOP-Drill collar-01
Production Capacity: 500 joint/month
Delivery Date: 30 days
Material: AISI 4145H
Type: Spiral
OD: 11"
Means of Transport: Ocean
Packing: sea shipment
Spec.: API 7
Usage: Oil well drilling tools
Connection: IF

Drill collar As per API Spec7Material: AISI 4145H & Non-magnetic materialOD: 3-1/8"~11"
Length: 10"~31".
Type: Spiral drill collar and slick drill

The spiral drill collar

Model
TOP-Drill collar-01
Spec.
API 7
Material
AISI 4145H
Usage
Oil well drilling tools
Type
Spiral
Connection
IF
OD
11"

The spiral drill collar is added to a drill collar to prevent the likelihood of differential wall-sticking by reducing wall contact between the drill collar and the wall of the hole. The box end of the spiral collar is left uncut from 79 inches from box shoulder and the pin end is left uncut 30 inches from the pin shoulder.
API relief groove pin and bore back box stress relief are available on request.
Thread roots are cold-worked to offer a greater resistance to fatigue.
All connections are phosphated to minimize galling during makeup and applied with thread storage compound.
Thread protectors are installed to ensure adequate joint protection during shipment.

Oil well drill collar
Oil well drilling API Spiral drill collar Slick drill collar
Ms. Elaine
skype Ms. Elaine

Tel: 86-29-81779342
Mobile: 136 2920 7466
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Company Info

XI'AN ZZ TOP OIL TOOLS CO.,LTD [China (Mainland)]

sgs ico

Business Type:Manufacturer, Distributor/Wholesaler, Service
City: Xi'an
Province/State: Shaanxi
Country/Region: China (Mainland)

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